CN103882904A - Electric and hydraulic hybrid power excavator - Google Patents
Electric and hydraulic hybrid power excavator Download PDFInfo
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- CN103882904A CN103882904A CN201410135084.XA CN201410135084A CN103882904A CN 103882904 A CN103882904 A CN 103882904A CN 201410135084 A CN201410135084 A CN 201410135084A CN 103882904 A CN103882904 A CN 103882904A
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Abstract
The invention discloses an electric and hydraulic hybrid power excavator and relates to an excavator. The electric and hydraulic hybrid power excavator comprises a complete machine controller, a variable-frequency motor, a motor controller, a storage battery, a hydraulic sensor, a solenoid valve, a hydraulic accumulator and a battery charger. The complete machine controller is connected with the storage battery, the hydraulic sensor, the solenoid valve, the hydraulic accumulator and the battery charger. The complete machine controller is also connected with the variable-frequency motor through the motor controller. The electric and hydraulic hybrid power excavator is free of pollution, low in noise and free of exhaust gas emission; besides, energy is reproducible.
Description
Technical field
What the present invention relates to is a kind of excavator, is specifically related to a kind of electric hydaulic hybrid excavator.
Background technology
Economical in development, society is improving, and energy-conserving and environment-protective become the common recognition of human society day by day.All kinds of household electrical appliance, automobile are more and more towards the future development of energy conservation, low-carbon environment-friendly.Excavator is the indispensable instruments of industry such as people's agricultural production, engineering construction, Chinese garden planting, and excavator is also " rich and influential family " of fuel consume and exhaust emissions, and development new forms of energy excavator can finely address these problems.
Conventionally the excavator of use, using fuel oil as the energy, drives hydraulic pump to produce hydraulic power by engine combustion fuel oil, controls the work of digger operating device, slewing equipment, running gear.Excavator, in the time of normal work, needs motor to remain that high rotating speed moves to ensure enough power output.Motor need to consume a large amount of fuel oils in the operation of high rotating speed, simultaneously also to discharging a large amount of tail gas in air, discharge the noise of high-decibel, cause the consumption of non-renewable energy resources, the pollution of air and the sense of hearing that has endangered human pilot.
Summary of the invention
For the deficiency existing in prior art, the present invention seeks to be to provide a kind of electric hydaulic hybrid excavator, pollution-free, noise is low, zero exhaust emissions, and the energy is renewable.
To achieve these goals, the present invention realizes by the following technical solutions: electric hydaulic hybrid excavator, comprise complete machine controller, adjustable frequency motor, motor controller, battery, hydrostatic sensor, electromagnetic valve, hydraulic accumulator and charger, complete machine controller is connected with battery, hydrostatic sensor, electromagnetic valve, hydraulic accumulator and charger respectively, and complete machine controller is also connected with adjustable frequency motor by motor controller.
As preferably, the output shaft of described adjustable frequency motor is connected by shaft coupling with hydraulic pump power shaft and is fixed on excavator top rotary table, and motor drives the pollution-free degradable high-pressure and hydraulic oil sources of hydraulic pump output.
Motor power (output) of the present invention is less than motor that same equal-specification fuel power or pure electric excavator join or the power of motor; Adopt battery (lead-acid battery, ferric phosphate lithium cell, Ni-MH battery etc.) for motor provides electric energy, battery can be selected civilian single phase poaer supply or the charging of industrial three phase mains; Configuration motor, drives hydraulic pump rotation to produce hydraulic energy; Configuration motor controller, adjusts rotating speed and torsion that motor is exported; Configuration hydraulic accumulator storage hydraulic energy; Configuration complete machine controller, gather the actuating signal of excavator operating grip, the load signal of equipment, the hydraulic pressure signal of hydraulic accumulator, draw by the computing of CPU the power size that excavator work is required, send corresponding order to electric machine controller, control motor and export suitable power and rotating speed, control hydraulic accumulator output hydraulic pressure energy simultaneously; Control the hydraulic energy that reclaims digger revolving braking or equipment decline generation, and be stored in hydraulic energy storage device.
The present invention has following beneficial effect: 1, electric energy belongs to regenerative resource, water generating, wind-power electricity generation, solar electrical energy generation, inexhaustible, and battery can adopt civilian individual event power supply or the charging of industrial three phase mains, convenient, fast;
2, complete machine controller can be combined output according to the energy of loading demand control motor and hydraulic accumulator, accomplish the large power output of heavy load, the output of little load low-power, non-loaded zero power output, the hydraulic energy restriction loss of rotary braking or equipment decline is reclaimed and stored, further energy conservation.
3, motor consumes electric energy outputting power, pollution-free, noise is low.
Accompanying drawing explanation
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is circuit diagram of the present invention;
Fig. 2 is hydraulic structure figure of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
With reference to Fig. 1-2, this specific embodiment is by the following technical solutions: electric hydaulic hybrid excavator, comprise complete machine controller 1, adjustable frequency motor 2, motor controller 3, battery 4, hydrostatic sensor 5, electromagnetic valve 6, hydraulic accumulator 7 and charger 8, complete machine controller 1 is connected with battery 4, hydrostatic sensor 5, electromagnetic valve 6, hydraulic accumulator 7 and charger 8 respectively, and complete machine controller 1 is also connected with adjustable frequency motor 2 by motor controller 3.
Output shaft that it should be noted that described adjustable frequency motor 2 is connected by shaft coupling with hydraulic pump power shaft and is fixed on excavator top rotary table, and motor drives the pollution-free degradable high-pressure and hydraulic oil sources of hydraulic pump output.
In addition, described complete machine controller 1 detects the workload size of digger operating device, sends order control motor export corresponding rotating speed to motor controller.
The operating principle of this specific embodiment: when load hour, accumulator energy is when lower, motor drives a hydraulic energy part for hydraulic pump output for the equipment of excavator, a part is stored in hydraulic energy storage device.
In the time that load is less and the storage of hydraulic energy storage device energy is full, complete machine controller is given an order, and reduces the output of motor.In the time that load is larger, the common output hydraulic pressure energy of complete machine controller control motor and accumulator.
Described complete machine controller 1 can be by detecting the operating state of operating grip, the hydraulic energy producing in decline process when digger revolving braking procedure and equipment is reclaimed, and be stored in hydraulic accumulator, treat that it is to use that next heavy load drives.
This specific embodiment, by selecting the motor of appropriate power, by controlling the power stage of motor and the recycling of hydraulic energy, realizes further energy conservation simultaneously.
This specific embodiment is pollution-free, and noise is low, zero exhaust emissions, and the energy is renewable.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. electric hydaulic hybrid excavator, it is characterized in that, comprise complete machine controller (1), adjustable frequency motor (2), motor controller (3), battery (4), hydrostatic sensor (5), electromagnetic valve (6), hydraulic accumulator (7) and charger (8), complete machine controller (1) respectively with battery (4), hydrostatic sensor (5), electromagnetic valve (6), hydraulic accumulator (7) is connected with charger (8), complete machine controller (1) is also connected with adjustable frequency motor (2) by motor controller (3).
2. electric hydaulic hybrid excavator according to claim 1, it is characterized in that, the output shaft of described adjustable frequency motor (2) is connected by shaft coupling with hydraulic pump power shaft and is fixed on excavator top rotary table, and motor drives the pollution-free degradable high-pressure and hydraulic oil sources of hydraulic pump output.
3. electric hydaulic hybrid excavator according to claim 1, it is characterized in that, described complete machine controller (1) detects the workload size of digger operating device, sends order control motor export corresponding rotating speed to motor controller.
4. electric hydaulic hybrid excavator according to claim 1, it is characterized in that, described excavator when load hour, accumulator energy is when lower, motor drives a hydraulic energy part for hydraulic pump output for the equipment of excavator, and a part is stored in hydraulic energy storage device; In the time that load is less and the storage of hydraulic energy storage device energy is full, complete machine controller is given an order, and reduces the output of motor; In the time that load is larger, the common output hydraulic pressure energy of complete machine controller control motor and accumulator.
5. electric hydaulic hybrid excavator according to claim 1, it is characterized in that, described complete machine controller (1) can be by detecting the operating state of operating grip, the hydraulic energy producing in decline process when digger revolving braking procedure and equipment is reclaimed, and be stored in hydraulic accumulator, in the time that driving, next heavy load uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135084.XA CN103882904A (en) | 2014-04-04 | 2014-04-04 | Electric and hydraulic hybrid power excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135084.XA CN103882904A (en) | 2014-04-04 | 2014-04-04 | Electric and hydraulic hybrid power excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103882904A true CN103882904A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410135084.XA Pending CN103882904A (en) | 2014-04-04 | 2014-04-04 | Electric and hydraulic hybrid power excavator |
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| Country | Link |
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| CN (1) | CN103882904A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
| CN106347118A (en) * | 2016-10-12 | 2017-01-25 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Driving system for underground scraper |
| CN111021460A (en) * | 2019-12-31 | 2020-04-17 | 三一重机有限公司 | Pure electric excavator and control method thereof |
-
2014
- 2014-04-04 CN CN201410135084.XA patent/CN103882904A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
| CN106347118A (en) * | 2016-10-12 | 2017-01-25 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Driving system for underground scraper |
| CN111021460A (en) * | 2019-12-31 | 2020-04-17 | 三一重机有限公司 | Pure electric excavator and control method thereof |
| CN111021460B (en) * | 2019-12-31 | 2022-07-29 | 三一重机有限公司 | Pure electric excavator and control method thereof |
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Application publication date: 20140625 |